Ceramics for concentrated solar power (CSP): From thermophysical properties to solar absorbers

Comprehensive study of WSiC:H coatings synthesized by microwave-assisted RF reactive sputtering

“…A W underlayer was deposited by RF magnetron sputtering (referred to as Physical Vapor Deposition, PVD in the following) of a solid W target in 20 sccm of Ar gas during 4.5 min. Depending on the final application, this underlayer can be used as an infrared reflector, as a substrate protector or simply as a layer to avoid the effect of the substrate [12]. The distance between the substrate and the target was set at 8.5 cm.…”

“…[11] In this perspective, nanocomposite cermets of the W-SiCH type could be one of the solutions to this problem since the materials used are known to be resistant and stable at high temperatures. [12,13] Indeed, silicon carbide is an ultra-refractory ceramic due to its thermal stability which can go beyond 2000°C [14] and has good oxidation and corrosion resistance after the formation of a silica (SiOx) passivation layer on its surface. Also, Tungsten is a refractory transition metal with good heat and electrical conductivity.…”